#include <stdio.h>

int main()
{
    int a,b,c,count = 0;
    printf("There are different metnods for XM to distribute books to 3 readers:\n");
    for(a = 1;a <= 5;a++)
    for(b = 1;b <=5;b++)
    for(c = 1;a != b && c <= 5;c++)
    if(c != a && c != b)
    printf(count%8?"%4d:%d,%d,%d" : "%4d:%d,%d,%d\n",++count,a,b,c);
}